Formula labeling method and device, storage medium and electronic equipment

The invention relates to a formula labeling method and device, a storage medium and electronic equipment, and the method comprises the steps: obtaining an original image which comprises a to-be-labeled formula; performing down-sampling processing on the original image to obtain first feature maps of different scales; for each scale, obtaining a second feature map of the scale according to the first feature map of the scale and the first feature maps of other scales except the scale; fusing the second feature maps of all scales to obtain a target feature map; according to the target feature map, a target image is determined, the target image comprises a labeling identifier for labeling the to-be-labeled formula, and the target feature map obtained by entering fusion based on the second feature map can keep stronger semantic information and more accurate position information at the same time; and the position labeling of the to-be-labeled formula in the target image determined according to the target feature ma